马铃薯渣酸水解工艺条件的研究  

Study on technology conditions of acid hydrolysis of potato dregs

作　　者：李昆鹏[1] 马建忠[1] 王玉丽[1] 王永刚[1] 

机构地区：[1]兰州理工大学生命科学与工程学院,甘肃兰州730050

出　　处：《食品工业科技》2011年第10期305-307,共3页Science and Technology of Food Industry

基　　金：兰州理工大学博士启动基金(SB08200603)

摘　　要：针对马铃薯渣中不溶性的碳水化合物,采用硫酸热水解法使其中的淀粉、纤维素、半纤维素等成分在以硫酸做催化剂的条件下水解成还原性糖。在酸浓度、酸固比、水解时间、水解温度四个单因素实验基础上,采用正交实验设计优化工艺条件。结果表明,在酸浓度为32%,酸固比为3∶1,水解时间为1h,水解温度为90℃下,1g马铃薯渣经水解上清液中总还原糖重量最高为0.5213g。The technology conditions of sulfuric acid hydrolysis of the insoluble carbohydrates in potato dregs were investigated. Effects of four single factors,acid concentration,acid to solid ratio,hydrolysis time and hydrolysis temperature were analyzed and then optimized according to orthogonal tests. The results showed that the highest yield of the total reducing sugar reached 0.5213g per gram dregs at 32% of the acid concentration, 3：1 of the acid to solid ratio, lh of the hydrolysis time,and 90℃ of the hydrolysis temperature,respectively.

关 键 词：马铃薯渣 酸水解 工艺条件 总还原糖 

分 类 号：TS209[轻工技术与工程—食品科学]